include/EvtGenModels/EvtItgFourCoeffFcn.hh

0001
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
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0005 * This file is part of EvtGen.                                         *
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0020
0021 #ifndef EVTITFOURCOEFFFCN_HH
0022 #define EVTITFOURCOEFFFCN_HH
0023
0024 #include "EvtGenModels/EvtItgAbsFunction.hh"
0025
0026 #include <vector>
0027
0028 // Description:
0029 //      Class describing a function with Four vectors of coefficients.
0030
0031 class EvtItgFourCoeffFcn : public EvtItgAbsFunction {
0032   public:
0033     EvtItgFourCoeffFcn( double ( *theFunction )( double,
0034                                                  const std::vector<double>&,
0035                                                  const std::vector<double>&,
0036                                                  const std::vector<double>&,
0037                                                  const std::vector<double>& ),
0038                         double lowerRange, double upperRange,
0039                         const std::vector<double>& coeffs1,
0040                         const std::vector<double>& coeffs2,
0041                         const std::vector<double>& coeffs3,
0042                         const std::vector<double>& coeffs4 );
0043
0044     void setCoeff( int, int, double ) override;
0045     double getCoeff( int, int ) override;
0046
0047   protected:
0048     double myFunction( double x ) const override;
0049
0050   private:
0051     // Data members
0052     double ( *_myFunction )( double x, const std::vector<double>& coeffs1,
0053                              const std::vector<double>& coeffs2,
0054                              const std::vector<double>& coeffs3,
0055                              const std::vector<double>& coeffs4 );
0056
0057     std::vector<double> _coeffs1;
0058     std::vector<double> _coeffs2;
0059     std::vector<double> _coeffs3;
0060     std::vector<double> _coeffs4;
0061 };
0062
0063 #endif    // EvtITGPTRFUNCTION_HH